CN212779736U

CN212779736U - Precision detection device for pressure sensor production

Info

Publication number: CN212779736U
Application number: CN202022086990.9U
Authority: CN
Inventors: 罗博; 罗燕飞; 吴克思
Original assignee: Inner Mongolia Tongli Intelligent Technology Co ltd
Current assignee: Inner Mongolia Tongli Intelligent Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-03-23
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a precision detection device for pressure sensor production, which comprises a bottom plate, a supporting leg, a mounting groove, a pressure controller, a supporting frame and a pressure applying mechanism, wherein the pressure applying mechanism is arranged and controls the extension force of a piston rod of a cylinder in a pneumatic mode, a pressure gauge is arranged on the cylinder and detects the pressure in the cylinder, the precision of the pressure sensor is tested by calculating the value on the pressure gauge and the vertical direction of the pressure sensor under the pressure, a reversing valve is arranged on the right side of the cylinder and controls the air intake and exhaust of the cylinder through the reversing valve, the expansion and contraction of the piston rod in the cylinder are conveniently controlled, the numerical precision of the pressure sensor under different pressures is conveniently detected by controlling the pressure in the cylinder, convenient operation increases detection device's automatic effect.

Description

Precision detection device for pressure sensor production

Technical Field

The utility model particularly relates to a precision detection device is used in pressure sensor production relates to pressure sensor and detects relevant field.

Background

The pressure sensor is a detection device which can sense the measured information and convert the sensed information into an electric signal or other information in a required form according to a certain rule to output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like, wherein the pressure sensor generally comprises a pressure sensitive element and a signal processing unit and can convert a pressure signal into a usable output electric signal according to a certain rule.

The existing pressure sensor needs to be subjected to precision detection during production, the existing pressure sensor is generally subjected to pressure application detection by a heavy object in a detection mode, the detection effect is general, the pressure application object needs to be moved manually, the detection operation is inconvenient, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above insufficiency, the utility model provides a precision detection device is used in pressure sensor production here.

The utility model is realized in such a way, construct a precision detection device for pressure sensor production, which comprises a bottom plate and a pressure applying mechanism, wherein the rear side of the top end of the bottom plate is welded with a support frame, the top end of the support frame is provided with the pressure applying mechanism, the pressure applying mechanism comprises a cylinder, a reversing valve, a pressure gauge, a piston plate, a piston rod, a first spring and a pressure plate, the top end of the right side of the cylinder is provided with the reversing valve, the top end of the left side of the cylinder is provided with the pressure gauge, the piston plate is embedded in the cylinder, the bottom end of the piston plate is mutually locked with the piston rod through a bolt, the bottom end of the piston plate is elastically connected with the cylinder through the first spring, the first spring is sleeved outside the piston rod, the bottom end of the piston rod is mutually locked with the pressure plate through a bolt, the reversing valve is connected with the pressure controller.

Preferably, the bottom end of the bottom plate is locked with the supporting legs through bolts, the middle part of the top end of the bottom plate is provided with a mounting groove, and the right side of the top end of the bottom plate is locked with the pressure controller through bolts.

Preferably, the reversing valve comprises a valve body, a movable rod, a sealing plate, a coil, a second spring, an electromagnet, a connecting pipe, an exhaust port and an air inlet pipe, wherein the movable rod is vertically arranged in the middle of the valve body, the sealing plate is arranged outside the movable rod, the coil is wound at the bottom end of the outer side of the movable rod, the bottom end of the movable rod is elastically connected with the electromagnet through the second spring, the electromagnet is fixed at the bottom end of the valve body, the connecting pipe is arranged in the middle of the left end of the valve body, the exhaust port and the air inlet pipe are respectively arranged on the upper side and the lower side of the right end of the valve body, the air inlet pipe is connected with a pressure controller, the.

Preferably, the rubber ring is sleeved on the outer side of the piston plate, and the inner wall of the cylinder is attached to the piston plate.

Preferably, the bottom end of the pressing plate is planar, and the bottom end of the pressing plate is vertically aligned with the mounting groove.

Preferably, the bottom end in the cylinder is provided with a limiting pipe, and the piston rod vertically penetrates through the limiting pipe to extend out.

Preferably, a limiting rod is inserted at the top end of the movable rod, and the inner wall of the top end of the movable rod is attached to the limiting rod.

Preferably, the sealing plate is provided with two, and the valve body inner wall is laminated with the sealing plate.

Preferably, the piston plate and the piston rod are made of stainless steel.

Preferably, the sealing plate is made of nitrile rubber.

The utility model has the advantages of as follows: the utility model discloses an improve and provide a precision detection device for pressure sensor production here, compare with equipment of the same type, have following improvement:

a precision detection device is used in pressure sensor production, through having set up the mechanism of exerting pressure, the mechanism of exerting pressure adopts the pneumatic mode to control the extension dynamics of the piston rod of cylinder, and set up the manometer on the cylinder, the manometer detects cylinder internal pressure, through calculating the vertical that numerical value on the manometer and pressure sensor detected under this pressure, test pressure sensor's precision, and set up the switching-over valve on the cylinder right side, control the admitting air and the exhaust of cylinder through the switching-over valve, be convenient for control the flexible of the piston rod of cylinder inside, through the inside pressure of control cylinder, numerical value precision that detects pressure sensor under different pressures, be convenient for carry out the precision detection to pressure sensor, and convenient for operation increases detection device's automation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the pressing mechanism of the present invention;

FIG. 3 is a sectional view of the internal structure of the pressing mechanism of the present invention;

FIG. 4 is a schematic view of the structure of the reversing valve of the present invention;

fig. 5 is a sectional view of the internal structure of the reversing valve of the present invention.

Wherein: the pressure-applying device comprises a bottom plate-1, supporting legs-2, a mounting groove-3, a pressure controller-4, a supporting frame-5, a pressure-applying mechanism-6, a cylinder-61, a reversing valve-62, a pressure gauge-63, a piston plate-64, a piston rod-65, a first spring-66, a pressure plate-67, a valve body-621, a movable rod-622, a sealing plate-623, a coil-624, a second spring-625, an electromagnet-626, a connecting pipe-627, an exhaust port-628 and an air inlet pipe-629.

Detailed Description

The present invention will be described in detail with reference to the accompanying fig. 1-5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an improved precision detection device for pressure sensor production, which includes a bottom plate 1 and a pressing mechanism 6, wherein a supporting frame 5 is welded on the rear side of the top end of the bottom plate 1, the pressing mechanism 6 is installed on the top end of the supporting frame 5, the bottom end of the bottom plate 1 is mutually locked with a supporting leg 2 through a bolt, a mounting groove 3 is formed in the middle of the top end of the bottom plate 1, and the right side of the top end of the bottom plate 1 is mutually locked with a pressure controller 4 through a bolt.

Referring to fig. 2 and 3, the present invention provides a precision detection device for pressure sensor production through improvement, wherein the pressure applying mechanism 6 includes a cylinder 61, a reversing valve 62, a pressure gauge 63, a piston plate 64, a piston rod 65, a first spring 66 and a pressure plate 67, the reversing valve 62 is installed at the top end of the right side of the cylinder 61, the pressure gauge 63 is installed at the top end of the left side of the cylinder 61, the piston plate 64 is embedded in the cylinder 61, the bottom end of the piston plate 64 is mutually locked with the piston rod 65 through a bolt, the bottom end of the piston plate 64 is elastically connected with the cylinder 61 through the first spring 66, the first spring 66 is sleeved outside the piston rod 65, the bottom end of the piston rod 65 is mutually locked with the pressure plate 67 through a bolt, the bottom end of the cylinder 61 is mutually locked with the support frame 5 through a bolt, the reversing valve 62 is connected with the pressure controller 4, the rubber ring is sleeved, carry out the closure between piston plate 64 and the cylinder 61, make piston plate 64 top be encapsulated situation, clamp plate 67 bottom is planar, and clamp plate 67 bottom and the 3 vertical alignments of mounting groove, make clamp plate 67 downstream push down the pressure sensor of 3 internally mounted of mounting groove, the inside bottom of cylinder 61 is provided with spacing pipe, and piston rod 65 is vertical to run through spacing pipe and stretch out, restrict piston rod 65's removal orbit, piston plate 64 and piston rod 65 all adopt stainless steel, hardness is high, and difficult rusting.

Referring to fig. 4 and 5, the present invention provides a precision detecting device for pressure sensor production through improvement, a reversing valve 62 includes a valve body 621, a movable rod 622, a sealing plate 623, a coil 624, a second spring 625, an electromagnet 626, a connecting pipe 627, an exhaust port 628 and an air inlet pipe 629, the movable rod 622 is vertically disposed in the middle of the valve body 621, the sealing plate 623 is disposed outside the movable rod 622, the coil 624 is wound on the bottom end of the outside of the movable rod 622, the bottom end of the movable rod 622 is elastically connected to the electromagnet 626 through the second spring 625, the electromagnet 626 is fixed at the bottom end of the valve body 621, the connecting pipe 627 is disposed in the middle of the left end of the valve body 621, the exhaust port 628 and the air inlet pipe 629 are disposed on the upper and lower sides of the right end of the valve body 621 respectively, the air inlet pipe 629 is connected to a pressure controller 4, the left, the activity pole 622 top is pegged graft and is had a gag lever post, and activity pole 622 top inner wall and gag lever post laminating, the removal orbit to the activity pole 622 limits, the closing plate 623 is provided with two, and the laminating of valve body 621 inner wall and closing plate 623, and during two closing plate 623 rebound, the connecting pipe 627 is connected with intake pipe 629, during two closing plate 623 rebound, the connecting pipe 627 is connected with gas vent 628, be convenient for carry out conversion control to the connection of connecting pipe 627, the closing plate 623 adopts the butadiene acrylonitrile rubber material, resistant extrusion power is big, and sealed effectual.

The utility model provides a precision detection device for pressure sensor production through improvement, and the working principle is as follows;

firstly, before use, the device is firstly placed on a plane position required by a user through the supporting feet 2 at the bottom, and then the pressure controller 4 is connected with an external power supply;

secondly, when in use, a pressure sensor assembly which needs to perform pressure detection is placed in the mounting groove 3 at the top of the bottom plate 1, external air is extracted through the pressure controller 4, the electromagnet 626 at the bottom end of the reversing valve 62 is electrified, magnetic force is generated by the electromagnet 626 to downwards adsorb the coil 624, the coil 624 drives the movable rod 622 to downwards move, as the two sealing plates 623 are arranged, the inner wall of the valve body 621 is attached to the sealing plate 623, when the two sealing plates 623 downwards move, the connecting pipe 627 is connected with the exhaust port 628, air enters the valve body 621 through the air inlet pipe 629 and enters the top end inside the cylinder 61 through the connecting pipe 627, air pressure is generated at the top end inside the cylinder 61, the piston plate 64 downwards moves, the piston plate 64 drives the pressing plate 67 to vertically downwards move through the piston rod 65, and the pressure sensor assembly inside the mounting groove 3 is pressed through the pressing plate 67, the accuracy of the pressure sensor is tested by calculating the value on the pressure gauge 63 and the verticality of the pressure sensor detected under the pressure, and the accuracy of the value of the pressure sensor detected under different pressures is tested by controlling the pressure in the cylinder 61;

thirdly, after the detection is completed, the power on the electromagnet 626 is cut off, the second spring 625 generates elastic potential energy to push the movable rod 622 to move upwards, when the two sealing plates 623 on the outer side of the movable rod 622 move upwards, the connecting pipe 627 is connected with the air inlet pipe 629, the first spring 66 generates elastic potential energy to push the piston plate 64 upwards, and the gas on the top end inside the cylinder 61 is discharged through the connecting pipe 627 and the air outlet 628, so that the pressing plate 67 moves upwards, the pressure sensor can be taken out, the precision detection on the pressure sensor is facilitated, the operation is convenient, and the automation effect of the detection device is improved.

The utility model provides a precision detection device for pressure sensor production through improvement, through arranging the pressure applying mechanism 6, the pressure applying mechanism 6 adopts a pneumatic mode to control the extension force of the piston rod 65 of the cylinder 61, and a pressure gauge 63 is provided on the cylinder 61, the pressure gauge 63 detects the pressure inside the cylinder 61, by calculating the value on the pressure gauge 63 and the vertical detected by the pressure sensor at that pressure, the accuracy of the pressure sensor is tested, and a reversing valve 62 is arranged at the right side of the cylinder 61, the intake and exhaust of the cylinder 61 is controlled by the directional valve 62, which facilitates the control of the extension and contraction of the piston rod 65 inside the cylinder 61, and the pressure inside the cylinder 61 is controlled, the numerical value precision of the pressure sensor under different pressures is convenient for carry out precision detection on the pressure sensor, the operation is convenient, and the automation effect of the detection device is increased.

Claims

1. The precision detection device for the production of the pressure sensor comprises a bottom plate (1), wherein a support frame (5) is welded on the rear side of the top end of the bottom plate (1);

the method is characterized in that: still include mechanism (6) of exerting pressure, mechanism (6) of exerting pressure is installed on support frame (5) top, mechanism (6) of exerting pressure includes cylinder (61), switching-over valve (62), manometer (63), piston plate (64), piston rod (65), first spring (66) and clamp plate (67), switching-over valve (62) are installed on cylinder (61) right side top, manometer (63) are installed on cylinder (61) left side top, piston plate (64) have been embedded to cylinder (61) inside, piston plate (64) bottom is through the mutual lock solid of bolt and piston rod (65), piston plate (64) bottom is through first spring (66) and cylinder (61) elastic connection, and first spring (66) cup joint in the piston rod (65) outside, piston rod (65) bottom is through the mutual lock solid of bolt and clamp plate (67), cylinder (61) bottom is through the mutual lock solid of bolt and support frame (5), the reversing valve (62) is connected with the pressure controller (4).

2. The accuracy detection device for pressure sensor production according to claim 1, characterized in that: the bottom end of the bottom plate (1) is locked with the supporting legs (2) through bolts, the middle of the top end of the bottom plate (1) is provided with a mounting groove (3), and the right side of the top end of the bottom plate (1) is locked with the pressure controller (4) through bolts.

3. The accuracy detection device for pressure sensor production according to claim 1, characterized in that: the reversing valve (62) comprises a valve body (621), a movable rod (622), a sealing plate (623), a coil (624), a second spring (625), an electromagnet (626), a connecting pipe (627), an exhaust port (628) and an air inlet pipe (629), wherein the movable rod (622) is vertically arranged in the middle of the valve body (621), the sealing plate (623) is arranged on the outer side of the movable rod (622), the coil (624) is wound on the bottom end of the outer side of the movable rod (622), the bottom end of the movable rod (622) is elastically connected with the electromagnet (626) through the second spring (625), the electromagnet (626) is fixed at the bottom end of the valve body (621), the connecting pipe (627) is arranged in the middle of the left end of the valve body (621), the exhaust port (628) and the air inlet pipe (629) are respectively arranged on the upper side and the lower side of the right end of the valve, the left end of the valve body (621) is locked with the cylinder (61) through a bolt, and the left end of the connecting pipe (627) extends into the cylinder (61).

4. The accuracy detection device for pressure sensor production according to claim 1, characterized in that: the outer side of the piston plate (64) is sleeved with a rubber ring, and the inner wall of the cylinder (61) is attached to the piston plate (64).

5. The accuracy detection device for pressure sensor production according to claim 1, characterized in that: the bottom end of the pressing plate (67) is planar, and the bottom end of the pressing plate (67) is vertically aligned with the mounting groove (3).

6. The accuracy detection device for pressure sensor production according to claim 1, characterized in that: the bottom end in cylinder (61) is provided with spacing pipe, and piston rod (65) vertically runs through spacing pipe and stretches out.

7. The accuracy detection device for pressure sensor production according to claim 3, characterized in that: a limiting rod is inserted at the top end of the movable rod (622), and the inner wall of the top end of the movable rod (622) is attached to the limiting rod.

8. The accuracy detection device for pressure sensor production according to claim 3, characterized in that: the sealing plate (623) is provided with two, and the inner wall of the valve body (621) is attached to the sealing plate (623).